CN109937645A - Orchard organic fertilizer ditching and fertilizer applicator and its use method - Google Patents

Abstract

The invention relates to a ditching and fertilizing machine for orchard organic fertilizer and a method of using the same. The ditching and fertilizing machine comprises a traction machine, a fertilizer discharge device, and a suspension frame connected with a lifting device of the traction machine, and an intermediate shaft is installed on the suspension frame. The intermediate shaft is connected with a power device that drives it to rotate, and a trench opener is fixed on the intermediate shaft; it also includes a conveying pipe whose one end is communicated with the fertilizer discharge device, and the other end of the conveying pipe extends to the fertilization ditch opened by the opener. above. The invention realizes self-propelled by driving the whole machine to move by the traction machine, is suitable for orchards in hilly areas, and solves the problem of low mechanization level of organic fertilizer fertilization in orchards in hilly areas. According to the fertilization requirements of different plant spacings, the organic fertilizer in the fertilizer barrel is pumped out through the fertilizer discharge device to achieve precise control of the amount of fertilizer output, and the mixture of organic fertilizer and water in the fertilizer barrel is stirred by the stirring device to prevent the deposition of organic fertilizer, which is beneficial to organic fertilizer. pump out.

Description

Orchard organic fertilizer ditching and fertilizer applicator and its use method

technical field

The invention relates to the technical field of agricultural machinery fertilizer applicators, in particular to an orchard organic fertilizer ditching fertilizer applicator and a method for using the same.

Background technique

With the improvement of people's requirements for the urban and rural environment, human and animal manure, crop straw, etc. have always been problems in environmental remediation. Human and animal manure, crop straw, etc., as organic fertilizer sources, if not effectively treated and utilized, but directly discharged into the environment, will not only cause waste of organic fertilizer resources, but also cause serious damage to surface water, groundwater, soil and air. The pollution will also have a great impact on the urban and rural environment and endanger human health.

my country has a vast territory and is very rich in organic fertilizer resources, and the nutrients of organic fertilizers are complete, which can cultivate soil fertility, improve soil structure, and improve the quality of agricultural products. Especially for the planting of fruit trees in hilly areas, by applying organic fertilizers, seedlings and trees can be raised, the root system of fruit trees can be promoted, and the quality of products and fruits can be improved. Extensive use of organic fertilizers can also greatly reduce the amount of chemical fertilizers applied, reduce the cost of fruit tree planting, and reduce the pollution of chemical fertilizers to the soil. However, due to the relatively large amount of organic fertilizer applied each time in the orchard, the application of organic fertilizer in my country is still mainly in the stage of manual application. Generally, the organic fertilizer is accumulated in the field by vehicles, and then spread with a shovel, or It's all about scatter in the vehicle. This method not only has low work efficiency, but also uneven fertilizer spreading, heavy workload and harsh working conditions. The most important thing is that organic fertilizer cannot be directly transported to the root system of fruit trees to absorb nutrients, resulting in reduced organic fertilizer efficiency and environmental damage. Pollution. And there are many kinds of organic fertilizers, which can be divided into solid fertilizers and liquid fertilizers according to the form, and solid fertilizers include compost, manure, commercial granular organic fertilizers and powdered organic fertilizers. Traditional fertilization machinery cannot apply various types of organic fertilizers. Poor adaptability.

At present, there are many types of fertilizing machines, but there are still few mature organic fertilizer fertilizing machines. They are mainly concentrated in the spreader of solid organic fertilizer, which directly replaces the manual application of organic fertilizer on the surface of the farmland, but the solid organic fertilizer spreader is generally The models are too large to be suitable for hilly areas and orchard growing areas, and cannot apply organic fertilizers to the roots of fruit trees. Another type is the liquid organic fertilizer applicator, which directly invades the liquid organic fertilizer into the soil. However, due to the high production cost of liquid organic fertilizer in the early stage and the complex fertilization mechanical structure, it cannot be widely used. Therefore, according to the urgent needs of organic fertilizer applicators, it is of great significance to study an organic fertilizer ditching and fertilizer applicator that is suitable for orchards in hilly areas and can precisely control the amount of fertilizer applied, which is of great significance to improve the mechanization level and use efficiency of organic fertilizer application.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the prior art, the present invention provides an orchard organic fertilizer ditching and fertilizing machine and a method for using the same, which can not only apply compost, stable manure, commercial-produced granular organic fertilizer and powdered organic fertilizer in an orchard environment, but also accurately Control the amount of organic fertilizer applied, release organic fertilizer to the root system of fruit trees, and adjust the fertilization spacing for different orchard plant spacing.

The present invention is achieved through the following technical solutions, and provides an orchard organic fertilizer ditching and fertilizer applicator, comprising a traction device, a fertilizer discharge device arranged on the traction device, and a suspension frame connected to a lifting device of the traction device. An intermediate shaft is installed on the hanger, the intermediate shaft is connected with a power device that drives the rotation of the intermediate shaft, and a trench opener is fixed on the intermediate shaft; it also includes a conveying pipe whose one end is communicated with the fertilizer discharge device, and the other end of the conveying pipe is Extend to the top of the fertilizing ditch opened by the opener.

In this scheme, the whole machine can walk through the traction machine, and the machine can provide the installation carrier for the fertilizer discharge device and the ditching device. During operation, the power device drives the opener to rotate to open the ditch, and the organic fertilizer in the fertilizer discharge device is transported through the conveying pipe. The mixed liquid is introduced into the fertilization ditch to complete the fertilization operation, which greatly reduces the labor intensity and improves the fertilization efficiency; the organic fertilizer mixed liquid is the liquid mixed with organic fertilizer and water.

As an optimization, the fertilizer discharge device includes a fertilizer bucket fixed on the traction implement and an impeller pump arranged in the fertilizer bucket, and the conveying pipe is communicated with the outlet of the impeller pump. This optimization scheme pumps the fertilizer through the impeller pump, which improves the continuity and reliability of the fertilizer transportation.

As an optimization, an electromagnetic switch nozzle is installed on the conveying pipe. In this optimization scheme, the electromagnetic switch nozzle is set, which is convenient for the control system to control, and the control system can control the fertilization amount by controlling the opening time of the electromagnetic switch nozzle, which improves the accuracy of the fertilization amount.

As an optimization, a stirring device is also included, and the stirring device includes a stirrer located in the fertilizer tank and a stirring driving device that drives the agitator to rotate. This optimization scheme drives the agitator to rotate through the stirring drive device, and stirs the organic fertilizer and water in the fertilizer bucket, so as to prevent the deposition of the organic fertilizer in the water and fertilizer mixture, which is more conducive to the pumping of the fertilizer.

As an optimization, the stirring and driving device includes a hydraulic motor fixed to the traction implement and located above the fertilizer barrel, a reduction box connected to the output end of the hydraulic motor, and a hydraulic pump fixed to the traction implement and connected to the hydraulic motor. The output shaft of the reduction box is connected with the agitator in a driving manner, the input shaft of the hydraulic pump is connected with the power output shaft of the traction implement, and a hydraulic oil tank connected with the hydraulic pump is also fixed on the traction implement. This optimization scheme uses the power output shaft of the traction tool to drive the hydraulic pump to work, thereby driving the hydraulic motor to work, and the power of the hydraulic motor is transmitted to the reduction box, which in turn drives the agitator to work. The use of unmanned tractors in orchards improves versatility.

As an optimization, the reduction box has two output shafts, one of which is connected to the agitator through a secondary reduction device, and the other is connected to the agitator. The setting of this optimization scheme makes the agitator and the impeller pump share the same power source, which simplifies the structure. The impeller pump shaft is connected with the reduction box through the electromagnetic clutch, which facilitates the control of the impeller pump. The control system controls the combination of the electromagnetic clutch, and the impeller pump shaft supplies The impeller pump transmits power to start the impeller pump, the control system controls the electromagnetic clutch to separate, and the impeller pump stops working.

As an optimization, the agitator is a frame-type agitator, and the agitator is connected with the impeller pump shaft through a bearing. The agitator of this optimization scheme is a frame agitator, which increases the stirring area and improves the stirring effect. The agitator is installed on the impeller pump shaft, so that the impeller pump provides a rotating support for the agitator. Due to the setting of the bearing, the stirring The rotation of the impeller and the impeller pump shaft does not affect each other.

As an optimization, the suspension frame is located behind the traction implement, and is respectively hinged with the traction implement and the lifting device of the traction implement. In this optimization scheme, the suspension frame is arranged behind the traction machine, which reduces the lateral size and facilitates the movement of the traction machine. Reduce labor intensity.

As an optimization, a cover above the opener is fixed on the hanger, a soil cover plate behind the opener is fixed on the cover through a support rod, and the conveying pipe goes down through the cover and is connected with the cover. The support rod is fixed. In this scheme, the soil ditch after fertilization can be re-covered by setting the soil-covering board, providing a carrier for the installation of the soil-covering board by setting the cover, and at the same time, setting the cover to protect the upper part of the opener, and the soil brought out by the ditch can be protected. The setting of the blocking and support rods not only facilitates the installation of the soil covering plate, but also facilitates the fixing of the end of the conveying pipe to prevent the end of the conveying pipe from shaking, thereby improving the accuracy of fertilization.

The use method of the above-mentioned orchard organic fertilizer ditching and fertilizing machine comprises the following steps:

1. Move to the fertilization position through the walking of the traction machine, set the fertilization amount and fertilization depth parameters to the control system, and adjust the distance between the two openers according to the fertilization distance;

2. Drive the suspension frame to move down through the lifting device on the traction tool, so that the opener is in contact with the soil, and the power output from the power output shaft of the traction tool is transmitted to the power device through the universal joint, thereby driving the intermediate shaft to rotate, and then Drive the opener to rotate to open the trench;

3. During the rotation of the opener, the suspension frame continues to move downward, the distance to the ground is measured by the distance sensor set on the bottom of the suspension frame, and the measured distance is transmitted to the control system in real time, and the measured distance reaches the set value When it is turned on, the control system controls the electromagnetic switch nozzle to open, controls the electromagnetic clutch to combine, and pumps the fertilizer to the conveying pipe through the impeller pump, and the fertilizer flows into the opened fertilization ditch through the conveying pipe;

4. When the time for pumping fertilizer reaches the set value, the controller controls the electromagnetic switch nozzle to close, controls the electromagnetic clutch to separate, the lifting device drives the suspension frame to move upward, and the opener continues to rotate to mix the soil and fertilizer.

The beneficial effects of the invention are as follows: self-propelled is realized by driving the whole machine to move by the traction machine, which is suitable for orchards in hilly areas, and solves the problem of low mechanization level of organic fertilizer fertilization in orchards in hilly areas. The spacing of the trenchers can be adapted to the fertilization requirements of different plant spacings. The organic fertilizer in the fertilizer barrel is pumped out through the fertilizer discharge device to achieve precise control of the amount of fertilizer output. The mixture of organic fertilizer and water in the fertilizer barrel is stirred by the stirring device to prevent organic fertilizer. Sedimentation is conducive to the pumping of organic fertilizers.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the left side view of the present invention;

Fig. 3 is the rear view of the present invention;

Fig. 4 is the structural representation of stirring device;

Shown in the picture:

1. Bucket cover; 2. Upper support plate; 3. Fertilizer bucket; 4. Bracket; 5. Lower support plate; 6. Opener; 7. Covering plate; 8. Cover; 9. Fender; 10 , delivery pipe; 11, hydraulic oil tank; 12, traction equipment; 13, chassis; 14, reducer; 15, universal joint; 16, suspension frame; 17, intermediate shaft; 18, hydraulic pump; 19, hydraulic motor; 20, impeller pump shaft; 21, agitator; 22, impeller pump; 23, electromagnetic clutch; 24, secondary reduction gear; 25, coupling; 26, reduction box; 27, primary reduction gear.

Detailed ways

In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementations.

As shown in FIG. 1, an orchard organic fertilizer ditching and fertilizer applicator includes a traction device 12, a ditching device, and a fertilizer discharge device and a control system arranged on the traction device. The traction device 12 is a crawler-type orchard tractor, and the ditching device Symmetrically installed on both sides of the longitudinal center axis of the tractor's three-point suspension, using the power and lifting function of the output shaft of the crawler orchard tractor and other agricultural machinery to complete the ditching operation during the fertilization process, the ditch spacing is adjustable, and the fertilizer discharge device The pumped organic fertilizer is delivered to the trench. The control system is used to precisely control the amount of fertilization, judge the ditching depth of the ditching device, and complete the work sequence control of the fertilization device and the stirring device.

The fertilizer discharge device includes a fertilizer bucket 3 fixed on the traction machine and an impeller pump 22 arranged inside the fertilizer bucket. The impeller pump feed port is immersed in the mixture of water and organic fertilizer, and the impeller pump outlet is connected to the conveying pipe 10. An electromagnetic switch nozzle electrically connected with the control system is installed, and the amount of organic fertilizer fertilization is precisely controlled by controlling the opening time of the nozzle. Both sides of the tractor are respectively fixed with bottom frames 13 extending upward, the upper ends of the two bottom frames 13 are fixed by the lower support plate 5, the hydraulic oil tank 11 and the bracket 4 are fixed on the lower support plate 5, and the support 4 is fixed on the The upper support plate 2 above the fertilizer bucket. The upper part of the fertilizer bucket 3 is provided with a bucket cover 1 and a fertilizer inlet, and the bottom is provided with a fertilizer outlet. The conveying pipe 10 passes through the fertilizer outlet, and the conveying pipe and the fertilizer outlet are sealed.

It also includes a stirring device, which includes a stirrer located in the fertilizer barrel and a stirring driving device that drives the agitator to rotate. The stirring drive device includes a hydraulic motor 19 fixed on the top surface of the upper support plate, a reduction box 26 connected with the output end of the hydraulic motor through a coupling 25, and a hydraulic pump fixed on the orchard tractor and connected with the hydraulic motor. The output shaft of the reduction box is connected with the agitator in a transmission, the input shaft of the hydraulic pump is connected with the power output shaft of the orchard tractor through gear transmission, and the orchard tractor is also fixed with a hydraulic oil tank connected with the hydraulic pump through an oil pipe. The hydraulic pump 18 in the hydraulic system is located on the crawler orchard tractor, and is connected to the output shaft of the tractor through gears to obtain driving force, and is connected with the hydraulic motor and the hydraulic oil tank by the hydraulic oil pipe. The structure is simple and the arrangement is convenient. It is used for small orchard tractors with less hydraulic system power.

The gearbox is a one-input two-output gearbox with two output shafts. The two output shafts are respectively an upper output shaft and a lower output shaft. The upper output shaft and the agitator are connected to the agitator through a secondary reduction device, and the lower output shaft is connected with the electromagnetic clutch 23. The impeller pump shaft 20 is connected, the electromagnetic clutch 23 is electrically connected with the control system, and the control system controls the working state of the electromagnetic clutch, thereby controlling the time when the hydraulic motor power is transmitted to the fertilizer discharge device. An output gear is fixed on the upper output shaft, a vertical rod is fixed on the upper support plate, and a secondary reduction gear 24 and a primary reduction gear 27 meshing with the output gear are fixed on the vertical rod. A stirring input gear meshing with the secondary reduction gear 24 is connected. The index circle diameter of the first-stage reduction gear is larger than that of the output gear. The first-stage deceleration is realized through the meshing of the output gear and the first-stage reduction gear. The index circle diameter of the second-stage reduction gear is smaller than that of the stirring input gear. Diameter, through the meshing of the secondary reduction gear and the stirring input gear to realize the secondary deceleration, so that the power of the hydraulic motor is transmitted to the stirring device after the secondary deceleration and torque increase, so as to improve the stirring effect, and at the same time, the stability of the fertilizer barrel is improved by deceleration. .

The agitator is a frame-type agitator, and the agitator is connected with the impeller pump shaft through a bearing. A sleeve is also arranged between the impeller pump shaft and the bearing, the sleeve is sleeved on the impeller pump shaft, and the bearing is sleeved on the sleeve. The agitator includes several vertical rods evenly distributed along the circumferential direction, and several horizontal rods which are fixedly connected to each vertical rod. The agitator has a simple structure and low resistance during stirring. By setting the bottom rod, the fertilizer at the bottom of the fertilizer bucket can also be stirred, thereby reducing fertilizer deposition.

The ditching device includes a suspension frame 16 connected with the tractor's lifting device. The suspension frame is located behind the tractor and is hinged with the tractor and the tractor's lifting device respectively. The tractor's lifting device can drive the suspension frame to rotate to realize the opener. Altitude changes. An intermediate shaft 17 is installed on the suspension frame 16, and the intermediate shaft is connected with a power device that drives its rotation. The power device includes a reducer 14 and a universal joint 15. The two ends of the universal joint are respectively connected to the tractor power output shaft and the reducer. The input shaft, the output shaft of the reducer and the intermediate shaft are connected by a bevel gear transmission. The intermediate shaft is perpendicular to the advancing direction of the tractor, and is set horizontally. Two openers 6 are sleeved on the intermediate shaft. The conveying pipe 10 extends above the fertilizing ditch opened by the opener, and the fertilizer flows into the fertilizing ditch through the conveying pipe. The opener is fixed on the intermediate shaft by bolts, and there are several groups of threaded mounting holes distributed along the axial direction on the intermediate shaft. By selecting the mounting holes with different spacings, the spacing between the two openers can be adjusted to meet different Fertilization requirements for plant spacing.

A cover 8 located above the opener is fixed on the hanger, the cover is fixed with a soil cover plate 7 located behind the opener through the support rod, and the front end of the cover is fixed with a block extending to the front of the opener. Clay 9. The conveying pipe goes down through the cover and is fixedly connected with the support rod. The bottom surface of the cover is provided with an ultrasonic ranging sensor which is electrically connected with the control system, which is used to measure the height from the ground to facilitate the control of the trenching depth.

The control system includes an energy supply module, an information acquisition module, an information modulation processing module, a switch module, and an information output module; the energy supply module supplies power to the information acquisition module, the information modulation processing module, and the information output module; the information acquisition module The part includes a fertilization amount control part and a trenching depth control part, which are used to collect the signals of each sensor and send the signals to the information modulation and processing module; Analyze and judge the signal, and send the control plan data to the information output module; the switch module completes the manual control of the lifting, stirring and fertilization of the system, including the control system master switch, lifting switch, stirring switch, and fertilizing switch; The information output module includes an electromagnetic clutch module, an electromagnetic switch nozzle module and a display input module, and completes the precise fertilization and fertilization depth display functions designed by the system. In this embodiment, the control chip of the control module selects MC9S12G128 single-chip microcomputer.

The fertilization amount control part is to use the input keyboard to manually input the fertilization amount, fertilization interval and fertilization depth; the ditching depth control part is located under the cover, and the distance from the cover to the ground is measured by the ultrasonic ranging sensor to determine the opening of the opener. groove depth.

The electromagnetic clutch module is used to control the electromagnetic clutch, which is normally in the disengaged state, and in the combined state during operation. It controls the driving force of the hydraulic motor to decelerate and increase the torque and transmit it to the impeller pump. After the opener opens the trench to a certain depth, the control system controls the electromagnetic clutch. Combined, the impeller pump starts to work and pressurizes the organic fertilizer into the delivery pipe.

The electromagnetic switch nozzle module is used to control the electromagnetic switch nozzle. The control system sends an electromagnetic switch signal according to the fertilization depth, the nozzle is turned on for fertilization, and the fertilization amount is controlled by controlling the nozzle opening time. Combined with fruit tree row spacing, plant spacing, etc., different fertilization amounts and fertilization intervals can be controlled.

The display input module includes a display and an input keyboard. The display and the input keyboard are connected to the control system through a signal data line. The parameters such as fertilization amount and fertilization interval in the control program are set and modified through the input keyboard, and the display shows information such as fertilization depth.

The energy supply module is the 12V battery carried by the tractor. The 12V voltage directly supplies power to the electromagnetic clutch and electromagnetic switch nozzle. The MP1584 DC step-down module is used to convert the 12V voltage to 5V voltage and supply power for the minimum control system, display, ultrasonic sensor, etc. of the single-chip microcomputer.

The use method of the orchard organic fertilizer ditching and fertilizer applicator of the present embodiment includes the following steps:

1. Move the crawler orchard tractor to the fertilization position, use the input keyboard to set parameters such as fertilization amount and fertilization depth to the control system, and adjust the distance between the two openers according to the fertilization distance;

2. Drive the suspension frame to move down through the lifting device on the tractor, so that the opener is in contact with the soil, and the power output from the power output shaft of the tractor is transmitted to the power device through the universal joint, thereby driving the intermediate shaft to rotate, which in turn drives the The opener rotates to open the trench;

3. During the rotation of the opener, the suspension frame continues to move downward, and the distance to the ground is measured by the distance sensor on the cover, and the measured distance is transmitted to the control system in real time. When the measured distance reaches the set value , the control system controls the opening of the electromagnetic switch nozzle, controls the combination of the electromagnetic clutch, and pumps the fertilizer to the conveying pipe through the impeller pump, and the fertilizer flows into the opened fertilization ditch through the conveying pipe;

4. When the time for pumping fertilizer reaches the set value, the controller controls the electromagnetic switch nozzle to close, controls the electromagnetic clutch to separate, the lifting device drives the suspension frame to move upward, the opener continues to rotate, mixes the soil and fertilizer, and completes fertilization Operation.

Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be realized by or using the existing technology, and will not be repeated here; the above embodiments and drawings are only used to illustrate the technical solutions of the present invention, not It is a limitation of the present invention. The present invention is described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that changes, modifications, The additions or substitutions do not depart from the spirit of the present invention, and should also belong to the protection scope of the claims of the present invention.

Claims (10)

1. An orchard organic fertilizer ditching and fertilizing machine, comprising a traction machine (12), characterized in that: it also comprises a fertilizer discharge device arranged on the traction machine, and a hanger (16) connected with the lifting device of the traction machine , an intermediate shaft (17) is installed on the hanger (16), the intermediate shaft is connected with a power device that drives the rotation of the intermediate shaft, and an opener (6) is fixed on the intermediate shaft; It also includes a conveying pipe (10) whose one end is communicated with the fertilizer discharging device, and the other end of the conveying pipe (10) extends above the fertilization ditch opened by the opener. 2. The orchard organic fertilizer ditching and fertilizing machine according to claim 1, characterized in that: the fertilizer discharging device comprises a fertilizer bucket (3) fixed on the traction machine and an impeller pump (22) arranged in the fertilizer bucket ), the delivery pipe (10) communicates with the outlet of the impeller pump. 3 . The orchard organic fertilizer ditching and fertilizer applicator according to claim 2 , wherein an electromagnetic switch nozzle is installed on the conveying pipe. 4 . 4. The organic fertilizer ditching and fertilizing machine for orchards according to claim 2, characterized in that it further comprises a stirring device, and the stirring device comprises a stirrer located in the fertilizer barrel and a stirring driving device that drives the agitator to rotate. 5. The orchard organic fertilizer ditching and fertilizing machine according to claim 4, characterized in that: the stirring and driving device comprises a hydraulic motor (19) fixed to the traction machine and located above the fertilizer bucket, and connected to the output end of the hydraulic motor. The reduction box (26), and a hydraulic pump fixed on the traction tool and connected with the hydraulic motor, the output shaft of the reduction box is drivingly connected with the agitator, and the input shaft of the hydraulic pump is connected with the power output shaft of the traction tool. A hydraulic oil tank (11) connected to the hydraulic pump is also fixed on the traction implement. 6. The orchard organic fertilizer ditching and fertilizing machine according to claim 5, characterized in that: the reduction box has two output shafts, wherein one output shaft is connected with the agitator through a secondary reduction device, and the other output shaft passes through The electromagnetic clutch (23) is connected with the impeller pump shaft (20). 7 . The orchard organic fertilizer ditching and fertilizing machine according to claim 6 , wherein the agitator is a frame-type agitator, and the agitator is connected to the impeller pump shaft through a bearing. 8 . 8 . The organic fertilizer ditching and fertilizing machine for orchards according to claim 1 , wherein the hanger is located behind the traction machine, and is hinged with the traction machine and the lifting device of the traction machine. 9 . 9. The orchard organic fertilizer ditching and fertilizer applicator according to claim 1, characterized in that: a cover (8) located above the opener is fixedly connected to the hanger, and a cover (8) is fixedly connected to the cover through a support rod. The soil cover plate (7) behind the opener, the conveying pipe goes down through the cover and is fixed with the support rod. 10. a using method of orchard organic fertilizer ditching and fertilizing machine, is characterized in that, comprises the steps: (1) Move to the fertilization position through the walking of the traction machine, set the fertilization amount and fertilization depth parameters to the control system, and adjust the distance between the two openers according to the fertilization distance; (2) Drive the suspension frame to move down through the lifting device on the traction machine, so that the opener is in contact with the soil, and the power output from the power output shaft of the traction machine is transmitted to the power device through the universal joint, thereby driving the intermediate shaft to rotate, Then drive the opener to rotate to open the trench; (3) During the rotation of the opener, the suspension frame continues to move downward, and the distance to the ground is measured by the distance sensor set on the bottom surface of the suspension frame, and the measured distance is transmitted to the control system in real time, and the measured distance reaches the set value. When the value is reached, the control system controls the electromagnetic switch nozzle to open, controls the electromagnetic clutch to combine, and pumps the fertilizer to the conveying pipe through the impeller pump, and the fertilizer flows into the opened fertilization ditch through the conveying pipe; (4) When the time for pumping fertilizer reaches the set value, the controller controls the electromagnetic switch nozzle to close, controls the electromagnetic clutch to separate, the lifting device drives the suspension frame to move up, and the opener continues to rotate to mix the soil and fertilizer.